[PATCH 4/4] drm/i915/opregion: Flush asle_work during runtime suspend

[Ville Syrjala <ville.syrjala@linux.intel.com>]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

For good measure make sure asle_work has finished whatever it
was doing before we runtime suspend the device.

This probably isn't really necessary as long asle_work only
pokes at the mailbox as it should remain accessible even if
the device has been suspended. But seems better to play it
safe in case there is ever any need to do more stuff in
asle_work.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_opregion.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c
index e99616ea2ae6..08d36411668d 100644
--- a/drivers/gpu/drm/i915/display/intel_opregion.c
+++ b/drivers/gpu/drm/i915/display/intel_opregion.c
@@ -1294,6 +1294,8 @@ void intel_opregion_runtime_suspend(struct intel_display *display)
 		 */
 		intel_opregion_notify_adapter(display, PCI_D1);
 	}
+
+	flush_work(&opregion->asle_work);
 }
 
 void intel_opregion_unregister(struct intel_display *display)
-- 
2.49.0